This read-create Integer32, defaulting to 1, specifies the period of time in ticks it takes to transmit one byte of data, excluding protocol headers, to a destination on the far end of the circuit when the circuit is otherwise free of traffic. IPX RIP uses tick counts as part of its route-cost metric, so this value influences how IPX routing selects among paths of differing link speed. An admin tuning IPX routing over a slow WAN link might raise this value above the default of 1 to reflect that link's higher per-byte transmission delay.